package com.projecetest.eduservice.listener;

import com.alibaba.excel.context.AnalysisContext;
import com.alibaba.excel.event.AnalysisEventListener;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.projecetest.eduservice.entity.EduSubject;
import com.projecetest.eduservice.entity.excel.SubjectData;
import com.projecetest.eduservice.service.EduSubjectService;
import com.projecetest.servicebase.exceptionhandler.TestException;


public class SubjectExcelListener extends AnalysisEventListener<SubjectData> {

    //手动创建构造
    public EduSubjectService subjectService;
    public SubjectExcelListener() {}
    public SubjectExcelListener(EduSubjectService subjectService)
    {
        this.subjectService = subjectService;
    }
    //读取excel内容
    @Override
    public void invoke(SubjectData subjectData, AnalysisContext analysisContext) {
        if (subjectData == null)
        {
            throw new TestException(20001,"文件数据为空！");
        }
        //判断是否重复
        EduSubject existOneSubject = this.existOneSubject(subjectService, subjectData.getOneSubjectName());
        if (existOneSubject == null)
        {
            existOneSubject = new EduSubject();
            existOneSubject.setParentId("0");
            existOneSubject.setTitle(subjectData.getOneSubjectName());
            subjectService.save(existOneSubject);
        }

        String pid = existOneSubject.getId();
        EduSubject existTwoSubject = this.existTwoSubject(subjectService, subjectData.getTwoSubjectName(),pid);
        if (existTwoSubject == null)
        {
            existTwoSubject = new EduSubject();
            existTwoSubject.setParentId(pid);
            existTwoSubject.setTitle(subjectData.getTwoSubjectName());
            subjectService.save(existTwoSubject);
        }
    }

    //判断一级分类是否重复添加
    private EduSubject existOneSubject(EduSubjectService subjectService, String name)
    {
        QueryWrapper<EduSubject> wrapper = new QueryWrapper<>();
        wrapper.eq("title",name);
        wrapper.eq("parent_id","0");
        EduSubject oneSubject = subjectService.getOne(wrapper);
        return oneSubject;
    }
    //判断二级分类是否重复添加
    private EduSubject existTwoSubject(EduSubjectService subjectService, String name,String pid)
    {
        QueryWrapper<EduSubject> wrapper = new QueryWrapper<>();
        wrapper.eq("title",name);
        wrapper.eq("parent_id",pid);
        EduSubject twoSubject = subjectService.getOne(wrapper);
        return twoSubject;
    }
    @Override
    public void doAfterAllAnalysed(AnalysisContext analysisContext) {

    }
}
